Ventilator.



C. F. DAMM & G. HUBER.

N11-M5555. I

TTuRNEYi.

rTEn sTa TaTnnT ernten.

-ClIAEt1'.1iJS F. DAIVIM AND GEORGE HUBER, BUFFALO, NEW YORK; SAID HUBER .ASSIGNOR TO SAID DAMM.

VENTILATOR. i

Specification of Letters Patent.

Patented Sept. i0, 1918.

Application filed September 1, 1914. Serial No. 859,639.

T0 all whom t may concern:

Be it known that we, CHARLEs F. DAMM and GEORGE HUBER, citizens of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented new and useful Improvements in Ventilators, of which the following is a specification.

This invention relates to a ventilator which is more particularly designed for use on top of the roofs, on the side walls or underneath the floors of cars for Ventilating the interior of the same while moving in either direction, although the same may also be used for other purposes.

Itis the purpose of this invention to provide a ventilator of this character which is simple and inexpensive in construction, which will permit of eifectivelyrventilating the interior of a car while traveling in either direction or standing still without liability of snow, rain or cinders entering the interior of the car, as well as permitting of regulating the extent of the Ventilating effect to meet different requirements, and which can be readily and easily adjusted so that it will operate to ventilate the interior of the ear more or less.

In the accompanying drawings:

Figure l represents a vertical longitudinal section of one form of our improved ventilator applied to the roof of a railway car. Fig. 2 is a horizontal section thereof, taken in line 2 2, Fig. l. Fig. 3 is a vertical transverse Vsection taken in line 3 3, Fig. l.

- Fig. 4 is a fragmentary vertical longitudinal section showing a slightly vmodified form of our invention applied either to the floor or side of the car.

Similar` characters of reference indicate corresponding parts throughout the several views.`

Referring to Figs. 1-3, 1 represents the roof of a car which is assumed to be traveling in the direction of the arrow 2, which is from left to right. v 5 represents an upright air iue, preferably of tubular form which is secured in an opening in the roof of the car and communicates at its lower end with the interior of the car while its upperend communicates with the external atmosphere.

l represents a horizontal hood arranged lengthwise of the car and mounted on top of the roof, preferably by means of flanges 5, 6, depending from oppositelongitudinal sidesl of the hood and secured to the upper side of the roof of the car. preferably constructed in the form of a tube which is rectangular in cross section and open at its opposite ends. The upper end of the Hue 3 projects through an opening formed centrally in the bottom of the hood, so that this flue extends above thisV bottom and practically forms an annular upwardlyprojecting liange or guard around the central opening in the bottom of the hood.

7, 7 represent two gates or valves which are arranged lengthwise in the hood over the upper end of the flue and have their heels arranged adjacent to each other and preferably hinged or pivoted on a horizontal transverse pintle 8 mounted on the adjacent parts of the longitudinal side walls of the hood, so that both of these gates may be raised and lowered. Each of these gates projects lengthwise of the hood beyond the respective upper end of the flue and provided atits toe or free edge with a downwardly-projecting flange 2O which in the lowest position of the gate is adapted to engage with the bottom of the hood beyond the periphery of the flue. Vhen thus lowered, each gate practically closes or shuts oft' communication between the upper end of the Hue and the respective end of the hood, while upon raising the respective gate more or less, the area of the passageway between this flue and the respective end of the hood may be varied to suit requirements. In its uppermost position, each of the gates is separated from the adjacent part of the top of the hood so as to form a 9 between these parts. j

The raising and lowering of the gates -may be variously effected but preferably by the means which are shown in Figs. 1, 2 and 3, and which comprise a verticallyswinging yoke 10 which is of substantially diamond form in a vertical plane and pivoted by means of an ear 11 projecting upwardly from the upper central corner of the yoke and turning upon the central part of the pintle -8 which latter pivotally supports the gates on the hood, thereby permitting the yoke to swing in a vertical plane.

l2 represents the vertically-swinging operating or rock lever arranged with its upper part within the flue and pivotally supported between its upper and lower arms on a bracket which is preferably composed of two sections 13, 13 secured tothe inner side This hood is y j et passage j y of the lower part of the flue. Asliding connection is provided between the upper arm of the operating lever and the yoke by ends of the car within convenient reach of the conductor or motorinan, so that the latter may adjust or reverse the ventilator without leaving his post. ln the central position of the operating lever, the same stands vertical or nearly so, and at this time the yoke is also arranged in its central position so that neither of the upper edges of the latter which diverge downwardly iu opposite directions from the' pintle engage with the undersides of the gates whereby both of the latter are permitted to drop by gravity into their lowermost positionv and engage their toe flanges with the bottom of the hoody on opposite sides of the flue and communication between the interior of the ear body and the hood is out oft Then is is desired to ventilato the car while the same is traveling from left to right, as indicated by the'arrow 2 in Fig. 1,

Y the shipper rod 16 isV moved in the direction for causing the operating lever to swing the yoke toward the left. By so doing, the left end of the yoke engages with the underside of theleft gate and'lifts the same Y so as to form a passageway which places the upper end of the flue in communication with the left end of the hood, butduring this time the right gate is permitted to remain with its toe flange in engagement with the bottom of thehood, so that the right-hand end of the hood is cut off from communi-r cation with the upper vend of the flue and the interior of the car. When the parts are thus adjusted, the forward lmovement of the t. car causes a current of air to pass from right to left through the right-hand end ofv l the hood, thence over the lowered right handY gate, thence over the elevated left hand gate and thence outwardly through the left-hand j end ofthe hood, ythereby producing a suction effect -upon the upper endl of the'i'lue, whereby air from the interior of the car is drawn upwardly through the flue and discharged between the upper end of the latter and the left-hand gate androut through the left-hand end of the hood. This ventilating eiect may be varied according to requirements by raising the left gatejmore or less and vis most effective when the left gate is in its highest position in which it is still separated by the c omparativelynarrow jet passage `y9yfromfthe top ofthe hood through which air'may pass 'from rthe right'to the turning the operating lever and the yokeV in the opposite direction for causing. theleft gate vto be lowered 'upon t-hebottoin of the hood and cutting oil communication between the respective end ofthe hood and the Hue,

while the right gate is raised more or less for placingthe upper end of the flue in communication withjthe right hand end of the hood. In this reversed position of the parts, a movement of the car ,fromright to left causes a current of external air to pass from left to right through the hood' and i overl the gates, so that the air `from the interior of the car is withdrawn by suction through the flue and discharged at the right hand end of the hood. i'

ln order to prevent the gates from being 'A lifted or thrown upwardly into engagement with the topy of the hood, and cutting ofi' communication between opposite ends of the hood, and also toprevent rattling or chattering Vof .the gateswhile` elevated into their uppermost position, means are provided which operate to limit the upwardfmove ment of the gatesand also cause them to bear with abu'lling or cushioning edect against the .underside of the hood top. The preferred means for this purpose consists' in providing each of the'gates on its upper side with a button,` bumper or stop 17 ofl rubber or similar elastic material which. is adapted to engage withA the'top of the hood inthe highest position ofthe gate. (In comparatively cold weather, both gates may be lowered upon the bottom lofv the hood,

but during warm weather'e'ither one or the j trailing end ofthe hood'ma'y beglowere'd, in

which position ofthe parts the external air would'be caught by the advancing end ofgthe hood and forced downwardly through-the flue into the interior offthe car, thereby aidingr in cooling the same. V

The'bottom of the hood et preferablyinclines. from opposite sides of the flue ,3 to ward opposite ends of the hood so that this bottom 'will shed to the exteriorany water which may fall on the same. In order to form a good Vjoint between the gates `and the bottom of the hood when either gate is closed the oppositely inclined parts of the the' flangeQO'of the respective gate when the latter is fully lowered, as shown for instance at the right of Fig. l.

Rain, snow and cinders are prevented from entering the car through the hood and Hue by means of louvers, or slats 22 which are arranged transversely in opposite ends of the hood and incline outwardly, as shown in Figs. l and 2, so as to form guards or baHles which deHect any rain, snow or cinders downwardly away from the hood but permitting the air to enter and leave the hood freely. The opposite ends of the hood bottom also preferably terminate short of the outer edges of the lowermost guard slots, as shown in Fig. 1, so as to prevent rain, snow or cinders from striking the same and entering the hood.

By extending the upper end of the flue above the bottom of the hood, a guard Hange is produced which aids in preventing the entrance of rain, snow or cinders from the exterior of the car through the hood and into the interior thereof.

When our improved ventilator is employed on the roof of the car the weight of the gates may be relied upon to hold the same normally in a closed position, but when this ventilator is employed on the side of a car or underneath the bottom thereof, the force of gravity cannot be utiliz-ed to hold the gates normally in their closed position. lVhen, therefore, the ventilator is applied either to the side wall or to the bottom of a car, which is represented by 18 in Fig. 4, the gates may be yieldingly held in their closed position by means of springs 19 interposed between the outer side of the gate and the outer side of the hood.

It will be apparent that this ventilator is very compact in construction, it can be easily applied to cars of standard construction without detracting from the external or internal appearance of the same, and the same permits of effectively withdrawing the air from theF car or injecting air into the same as well as regulating the amount of air thus supplied to or withdrawn from the car.

We claim as our invention:

1. A ventilator, comprisin a Hue, two gates pivotally supported in ependently of each other over said Hue, and means for opening and closing said gates comprising a movable yoke adapted to engage with eitherl one or the other of said gates and movable independently of both of said gates.

2. A ventilator, comprising a tubular hood which is open at its opposite ends, a Hue communicating with the central part of said hood, two independently movable gates arranged within said hood over said Hue and having their heels pivotally supported adjacent to each other while their toes normally engage edgewise with the bottom of said hood on opposite sides of said Hue, and means for turning said gates independently of each other.

3. A 4ventilator comprising a tubular hood which is open at its opposite ends, a Hue communicating with the central part of said hood, two independently movable gates arranged within said hood over said Hue and having their heels arranged adjacent to each other while their toes are movable toward and from the bottom of the hood on opposite sides of said Hue, a pintle which is mounted on said hood and on which the heels of said gates are pivoted independently of each other, and means for turning said gates.

fitness our hands this 29th day of August, 1914.

CHARLES F. DAMM. GEORGE HUBER. Witnesses:

E. M. GRAHAM, THEO. L. PoPP.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents.

' Washington, D. C. 

